> For the complete documentation index, see [llms.txt](https://guide.cronuszen.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.cronuszen.com/gpcscripting/gpc-script-guide/learn-gpc/statements-blocks-and-comments.md).

# Statements, blocks, and comments

Braces group statements:

{% code title="statements-and-blocks.gpc" %}

```cpp
main {
    if(get_val(PS5_L2)) {
        set_val(PS5_R2, 100);
    }
}
```

{% endcode %}

The compiler accepts omitted semicolons in many places, but use them consistently. Semicolons are mandatory as separators in a `for` header. A missing semicolon after `return` can also make the next line look like its expression.

```cpp
// One-line comment

/*
    Block comment.
    Block comments cannot be nested.
*/
```

Use `//` when disabling a region that already contains block comments.


---

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